JP2012516944A5 - - Google Patents
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- JP2012516944A5 JP2012516944A5 JP2011548602A JP2011548602A JP2012516944A5 JP 2012516944 A5 JP2012516944 A5 JP 2012516944A5 JP 2011548602 A JP2011548602 A JP 2011548602A JP 2011548602 A JP2011548602 A JP 2011548602A JP 2012516944 A5 JP2012516944 A5 JP 2012516944A5
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- 238000000034 method Methods 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 4
- 239000011248 coating agent Substances 0.000 claims 2
- 238000000576 coating method Methods 0.000 claims 2
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 238000010301 surface-oxidation reaction Methods 0.000 claims 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical class [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001340 slower Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Description
還元ガスを接触するプロセスにおいて、２００℃以上の製品温度が、十分に早い還元速度を確実にするために要求される。例えば、この工程は、大気圧で、Ｎ2／Ｈ2混合物中で、静的条件で実施されうる。前記還元は、低い圧力、例えば１００〜１０００Ｐａで、早い流れのガス条件下でも実施されうる。加圧下は、Ｈ2が炉から逃げないことを保証するために有用であり、過剰圧力は、還元速度を高める。３５０〜５５０℃の製品温度が好ましい。 In the process of contacting the reducing gas, a product temperature of 200 ° C. or higher is required to ensure a sufficiently fast reduction rate. For example, this process can be carried out in static conditions in an N 2 / H 2 mixture at atmospheric pressure. Said reduction can also be carried out at low pressure, for example 100-1000 Pa, even under fast flow gas conditions. Under pressure is useful to ensure that the H 2 from escaping from the furnace, excess pressure increases the reduction rate. A product temperature of 350-550 ° C is preferred.
Ｚｎの蒸着が縮合ではなく、むしろ反応性蒸着であることが考えられる。Ｚｎ蒸気は、直接表面Ｆｅと反応し、それによってＺｎ−Ｆｅ金属間を形成する。Ｚｎ−Ｆｅ相は、典型的に予見される操作温度で固体である。また、Ｚｎは、安定な化合物中で捕捉されている。これは、製品の表面上での滴加水の危険がないことを意味する。比較的長い滞留時間及び製品及びその表面の高い温度によって、Ｆｅ及びＺｎは、Ｚｎに曝されている間金属間層を介して移動する傾向がある。合金層の厚さが増加するために、Ｆｅの相を介した分散は減速し、Ｚｎ蒸気に対する表面の低減した反応性をもたらす。この効果は、全ての被覆されるべき部分の均一な厚さを有する層の成長を提供する。１００μｍまでの層が成長されうる。 It is conceivable that the deposition of Zn is not condensation but rather reactive deposition. The Zn vapor directly reacts with the surface Fe, thereby forming a Zn—Fe metal interface. The Zn-Fe phase is solid at the operating temperatures typically foreseen. Further, Zn is captured in a stable compound. This means that there is no danger of dripping water on the surface of the product. Due to the relatively long residence time and the high temperature of the product and its surface, Fe and Zn tend to migrate through the intermetallic layer during exposure to Zn. As the thickness of the alloy layer increases, dispersion through the Fe phase slows down, resulting in reduced surface reactivity to Zn vapor. This effect provides for the growth of layers having a uniform thickness of all parts to be coated. Layers up to 100 μm can be grown.
このプロセスは、特に、複雑な形状の被覆製品に十分に適している。これに関して、少なくとも１つの凹表面及び／又は全ての軸について可変の断面を有する製品を意味する。かかる製品は、典型的に、１０ｍｍより厚い厚さを有する領域を有し、かつ／又は溶接部分の組立からなる。それらは、しばしば、接触可能領域、例えば管の内表面をほとんど有さない。 This process is particularly well suited for complex shaped coated products. In this context, it means a product having a variable cross section about at least one concave surface and / or all axes. Such products typically have areas with a thickness greater than 10 mm and / or consist of assembly of welds. They often have few accessible areas, such as the inner surface of the tube.
Claims (7)
− 加熱手段、ガスを導入及び抜き出すための手段、及び被覆されるべき製品のための出入り口を備えたプロセスチャンバーを有する、密閉可能な炉を提供する工程、
− 前記プロセスチャンバー中に被覆されるべき製品を取り入れる工程、
− プロセスチャンバー中で２００〜６５０℃の温度で前記製品と還元ガスとを接触させて、表面の酸化を取り除く工程、
− ガスをプロセスチャンバーから１０００Ｐａ未満の残圧まで抜き出す工程、
− プロセスチャンバー中で２２５〜６５０℃の温度で前記製品と金属Ｚｎ蒸気とを接触させて、該製品をＺｎ−Ｆｅ金属間層で被覆する工程、
− 被覆した製品をプロセスチャンバーから取り出す工程
を含む、鉄又は鋼鉄製品を、Ｚｎ−Ｆｅ金属間層で被覆するための方法であって、該製品と金属Ｚｎ蒸気とを接触する工程において、該製品の温度が、Ｚｎ蒸気の露点と同じであるか、又は露点よりも高いことを特徴とする、方法。 Less than,
Providing a sealable furnace having a process chamber with heating means, means for introducing and withdrawing gas, and an inlet and outlet for the product to be coated;
- the step of introducing the product to be coated in the process chamber,
-Contacting said product with a reducing gas at a temperature of 200-650 ° C in a process chamber to remove surface oxidation;
-Extracting the gas from the process chamber to a residual pressure of less than 1000 Pa,
-Contacting the product with a metallic Zn vapor at a temperature of 225-650 ° C in a process chamber to coat the product with a Zn-Fe intermetallic layer;
-A method for coating an iron or steel product with a Zn-Fe intermetallic layer comprising the step of removing the coated product from the process chamber , wherein the product and the metal Zn vapor are contacted; The temperature of is the same as or higher than the dew point of Zn vapor.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EPPCT/EP2009/000750 | 2009-02-04 | ||
| EPPCT/EP2009/000750 | 2009-02-04 | ||
| PCT/EP2010/000684 WO2010089110A1 (en) | 2009-02-04 | 2010-02-04 | Process for coating discrete articles with a zinc-based alloyed layer |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2012516944A JP2012516944A (en) | 2012-07-26 |
| JP2012516944A5 true JP2012516944A5 (en) | 2014-04-17 |
| JP5615297B2 JP5615297B2 (en) | 2014-10-29 |
Family
ID=41202691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2011548602A Expired - Fee Related JP5615297B2 (en) | 2009-02-04 | 2010-02-04 | Method for coating discrete products having an alloy layer based on zinc |
Country Status (10)
| Country | Link |
|---|---|
| US (2) | US8895106B2 (en) |
| JP (1) | JP5615297B2 (en) |
| KR (1) | KR101618914B1 (en) |
| CN (2) | CN105401121A (en) |
| AU (1) | AU2010211277B2 (en) |
| BR (1) | BRPI1008814A2 (en) |
| CA (1) | CA2751432C (en) |
| EA (1) | EA019686B1 (en) |
| WO (1) | WO2010089110A1 (en) |
| ZA (1) | ZA201105716B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9623632B2 (en) * | 2009-02-04 | 2017-04-18 | Umicore | Process for coating discrete articles with a zinc-based alloyed layer and articles obtained therefrom |
| US9956576B2 (en) | 2014-04-22 | 2018-05-01 | Metokote Corporation | Zinc rich coating process |
| US9700829B1 (en) * | 2016-02-29 | 2017-07-11 | Savannah River Nuclear Solutions, Llc | Method of capturing or trapping zinc using zinc getter materials |
| DE102021133090A1 (en) | 2021-12-14 | 2023-06-15 | Thyssenkrupp Steel Europe Ag | Process for the production of a flat steel product with cathodic protection against corrosion, plant for the production of a flat steel product provided with cathodic protection against corrosion and use |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5465141A (en) * | 1977-11-04 | 1979-05-25 | Kawasaki Steel Co | Rust preventing treatment of cold rolling steel plate |
| JPS5834167A (en) | 1981-08-25 | 1983-02-28 | Nippon Kokan Kk <Nkk> | Treatment for fe-zn alloying of zinc hot dipped steel plate |
| JPS5983765A (en) | 1982-11-05 | 1984-05-15 | Nisshin Steel Co Ltd | Manufacture of vacuum deposited galvanized steel sheet efficient in adhesion of plated metal |
| JPS61253382A (en) * | 1985-04-30 | 1986-11-11 | Mitsubishi Heavy Ind Ltd | Plating method for forming two layers of zn and al |
| JPH0660396B2 (en) | 1986-06-24 | 1994-08-10 | 日新製鋼株式会社 | Method for producing alloyed vapor-deposited zinc plated steel strip |
| JPS6417853A (en) | 1987-07-14 | 1989-01-20 | Kobe Steel Ltd | Zinc alloy plated product having excellent exfoliation resistance of coated film |
| US5002837A (en) | 1988-07-06 | 1991-03-26 | Kabushiki Kaisha Kobe Seiko Sho | Zn-Mg alloy vapor deposition plated metals of high corrosion resistance, as well as method of producing them |
| JPH02194162A (en) | 1988-10-13 | 1990-07-31 | Kobe Steel Ltd | Production of zn-mg alloy plated metallic material |
| JPH02232361A (en) * | 1989-03-06 | 1990-09-14 | Furukawa Electric Co Ltd:The | Surface reforming method |
| JPH08134632A (en) * | 1994-11-11 | 1996-05-28 | Nisshin Steel Co Ltd | Production of zinc-magnesium alloy plated steel sheet |
| JPH09111438A (en) * | 1995-10-18 | 1997-04-28 | Nisshin Steel Co Ltd | Zinc-magnesium alloy plated steel sheet excellent in corrosion resistance in edge face and its production |
| TW359688B (en) * | 1995-02-28 | 1999-06-01 | Nisshin Steel Co Ltd | High anticorrosion Zn-Mg series-plated steel sheet and method of manufacture it |
| JPH09143682A (en) | 1995-11-22 | 1997-06-03 | Nisshin Steel Co Ltd | Zinc-magnesium vapor deposition method using multiple duct and vapor deposition equipment |
| LU88730A1 (en) * | 1996-03-20 | 1997-02-21 | Laminoir De Dudelange S A | Method for coating a steel substrate with a layer of alloyed zinc |
| EP1423553A4 (en) * | 2001-08-01 | 2008-12-17 | Danieli Technology Inc | Metal vapor coating |
| CN201024207Y (en) * | 2007-02-07 | 2008-02-20 | 冯伟年 | Closed steel wire galvanizing device |
-
2010
- 2010-02-04 JP JP2011548602A patent/JP5615297B2/en not_active Expired - Fee Related
- 2010-02-04 CN CN201510711802.8A patent/CN105401121A/en active Pending
- 2010-02-04 EA EA201190152A patent/EA019686B1/en not_active IP Right Cessation
- 2010-02-04 US US13/147,674 patent/US8895106B2/en not_active Expired - Fee Related
- 2010-02-04 KR KR1020117019760A patent/KR101618914B1/en not_active IP Right Cessation
- 2010-02-04 BR BRPI1008814A patent/BRPI1008814A2/en not_active Application Discontinuation
- 2010-02-04 CA CA2751432A patent/CA2751432C/en not_active Expired - Fee Related
- 2010-02-04 AU AU2010211277A patent/AU2010211277B2/en not_active Ceased
- 2010-02-04 CN CN2010800066973A patent/CN102308016A/en active Pending
- 2010-02-04 WO PCT/EP2010/000684 patent/WO2010089110A1/en active Application Filing
-
2011
- 2011-08-03 ZA ZA2011/05716A patent/ZA201105716B/en unknown
-
2014
- 2014-10-21 US US14/519,262 patent/US20150232985A1/en not_active Abandoned
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